add brokers

weed/cluster/cluster.go

@@ -29,12 +29,15 @@ type Cluster struct {
 	filers       map[pb.ServerAddress]*ClusterNode
 	filersLock   sync.RWMutex
 	filerLeaders *Leaders
+	brokers      map[pb.ServerAddress]*ClusterNode
+	brokersLock  sync.RWMutex
 }
 
 func NewCluster() *Cluster {
 	return &Cluster{
 		filers:       make(map[pb.ServerAddress]*ClusterNode),
 		filerLeaders: &Leaders{},
+		brokers:      make(map[pb.ServerAddress]*ClusterNode),
 	}
 }
 
@@ -54,6 +57,28 @@ func (cluster *Cluster) AddClusterNode(nodeType string, address pb.ServerAddress
 			createdTs: time.Now(),
 		}
 		return cluster.ensureFilerLeaders(true, nodeType, address)
+	case BrokerType:
+		cluster.brokersLock.Lock()
+		defer cluster.brokersLock.Unlock()
+		if existingNode, found := cluster.brokers[address]; found {
+			existingNode.counter++
+			return nil
+		}
+		cluster.brokers[address] = &ClusterNode{
+			Address:   address,
+			Version:   version,
+			counter:   1,
+			createdTs: time.Now(),
+		}
+		return []*master_pb.KeepConnectedResponse{
+			{
+				ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
+					NodeType: nodeType,
+					Address:  string(address),
+					IsAdd:    true,
+				},
+			},
+		}
 	case MasterType:
 	}
 	return nil
@@ -73,6 +98,26 @@ func (cluster *Cluster) RemoveClusterNode(nodeType string, address pb.ServerAddr
 				return cluster.ensureFilerLeaders(false, nodeType, address)
 			}
 		}
+	case BrokerType:
+		cluster.brokersLock.Lock()
+		defer cluster.brokersLock.Unlock()
+		if existingNode, found := cluster.brokers[address]; !found {
+			return nil
+		} else {
+			existingNode.counter--
+			if existingNode.counter <= 0 {
+				delete(cluster.brokers, address)
+				return []*master_pb.KeepConnectedResponse{
+					{
+						ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
+							NodeType: nodeType,
+							Address:  string(address),
+							IsAdd:    false,
+						},
+					},
+				}
+			}
+		}
 	case MasterType:
 	}
 	return nil
@@ -86,6 +131,12 @@ func (cluster *Cluster) ListClusterNode(nodeType string) (nodes []*ClusterNode)
 		for _, node := range cluster.filers {
 			nodes = append(nodes, node)
 		}
+	case BrokerType:
+		cluster.brokersLock.RLock()
+		defer cluster.brokersLock.RUnlock()
+		for _, node := range cluster.brokers {
+			nodes = append(nodes, node)
+		}
 	case MasterType:
 	}
 	return